The P3A/P RC also puts out power on the USB but at standard USB current, maybe less. Changing USB mode on mobile to file transfer doesn't prevent it from accepting power. This is no different than plugging in your phones/tablets to your computer. Not enough to really charge a phone these days, particularly with how they are used with the RC but receives supplemental power nonetheless.
The P4P might be providing more power than standard USB.
I found out at least with the P3 RCs on my tablet, USB file transfer mode doesn't work. When I manage to get it to connect, it is in charge only mode.
Sent from my HTC 10 using PhantomPilots mobile app
The P4P might be providing more power than standard USB.
I found out at least with the P3 RCs on my tablet, USB file transfer mode doesn't work. When I manage to get it to connect, it is in charge only mode.
Sent from my HTC 10 using PhantomPilots mobile app